Knot-tver for grain-binders



(Model.)

P. HANsoNf KNOT4 TYER FR GRAIN BINDERS.

Nu-257,573. Patented May 9,1882.

mm MW- Kwiw( im man i We.

l ers, of which the following is a specification.

UNITED STATES PATENT OFFICE.

PAUL HANSON, OF ROCHESTER., MINNESGTA.

KNOT-TYER FOR GRAIN-BINDERS.

SPECIFICATION forming part of Letters Patent No. 257,573, dated May 9, 1882-.

n Application filed November 25, 1881. (Model.)

To all whom it may concern:

Be it known that I, PAUL HANsoN, a citizen of the United States, and a resident of Rochester, in the county of Olmsted and State of Minnesota, have made certain new and usefulV Improvements in Knot-'Byers for Grain-Bind- This invention relates to the mechanism by which the knot is tied in the cord encircling the bundles in grain-binders; and it consists ina revolving hook adapted to be reversed to draw the ent ends through the loop and cast the loop oli', and provided with a movable jaw and a fixed jaw, said movable jaw adapted to be opened. atthe proper point in the revolution of the hook to receive the cord between thejaws, and then be closed andrevolved backward to draw the ends through the loop and held closed until the knot is completed and cast otf, as hereinafter shown. I attain these objects bythe use of the mechanism illustrated in the accompanying drawings,in which- Figure l is a; side view. Fig. 2 is atop plan view, partially in section 5 and Fig. 3 is areal.1 elevation, partially in section, ot' the binderhook and a portion of the frame. Fig. 4t is a sectional view of the binder-hook and operating-spring, showing the movable jaw open. Fig. 5 is a top plan view ot' the binder-hook. Fig. 6 is a side view of the binder-hook from the opposite side of Figs. 3 and 4. Fig. 7 is a bottom plan view ot' the binder-hook and a portion of the operating-springdetached; Figs. 8 and 9, views ot' the binder-hook, illustrating the manner of forming the knot.

This invention is intended to be used more especially on the form. of binder shown in my application for a patent led June 28, 1881, No. 36,7 55, but maybe applied to other forms;- and it consists in a frame, A, made in any desired manner, and with a guard-plate, B, beneath which the g'avel of grain is run by the packers, and in which a slot, a, (see Fig. 2,) is formed, throughwhich the cords pass to the binding-hook, as shownindotted lines in Fig. 1.

In the frame A is an upright shaft, G, having` a pinion, D, on its upper end above the frame, and the binding'hool; on its lower end, between the frame A and guard B, as shown in Figs. l and 3, the said pinion being adapted to he revolved or turned back and forth, as

shown in my application for a patent above referred to, to give the necessary motion to the binding-hook.

The binding-hook consists of a large irregu lar hemispherical head, E, from the upper part of` which projects a curved `hook or jaw, b, at right angles to the shaft C, and in a slot in the head, in its lower part, is pivoted another curved hook or jaw, c, somewhat similar toI the hook b, and lying justbene'ath and a short e distance from it.

The hooi; bis provided at its outer point with a downwardly-exten din gand backwardl yslanting barb, d, whose lower part lies against and inside of the movable jaw c, as shown. The rear part of the hook c is made to nearly conform to the rear surface of the head E, but has a heel which projects a short distance beyond it, so that if the heel g be pressed downward the point of the movable jaw c will be held up against the barbed point of the fixed jaw b, as shown in Figs. 1, 3, (i, and 9; but it' the heel g of the pivoted hooi; c be pushed inward the movable jaw will be drawn away from the fixed jaw b, as shown in Figs. f1 and 8.

Attached to the frame A, and running along and curving inward toward the head and into a recess in the frame and lying partially above the head E, (see Figs. 2, 3, 4, 6, and 7,) is a spring, F, having a flat portion, h, at its outer K end on the lower side, and a curved recessed cam-surface, t', between said flat portion h and the head E. (See Figs. 3, 4l, 6, and 7.) When the shaft C is revolved in the direction of the arrow No. l, Fig. 2, the heel g of the hook c will pass behind the curved cam-surface fi of the spring F, and be forced inward and open the jaw c, as shown in Figs. et and 8, and then, when the motion of the shaft C is reversed, the point c of the heel g will pass beneath the dat portion h and hold the movablejaw c up against the Xed jaw b, as shown in Figs. 1, 3, 6, and 9.' By this means, when the shaft C is revolved in the direction of arrow No. 1, the jaws of the kuotter-hook will be opened while the heel gef the movable jaw is passing the cam-surface t', and closed when the point c of the heel g is passing beneath the dat portion 7b of the spring F in the direction of arrow No. 2. Figs. 3 and et illustrate this action, Fig. 3 showing the point e of the IOO heel beneath the flat portion lz, and Fig. fl showing the heel g behind the cani-surface i. The dog G is pivoted to the guard-plate B, and a sprin g, j, as shown in Fig. 2, bears against 5 its rear end, so as to keep its point in contact with the hooks, the purpose thereof being to push the cord from off the hook, as hereinafter described. Y

In Fig. 6 the opposite side of the hooks b u 1o and head E is shown, illustrating the manner of constructing them.

The action of forming the knot is the saine as that shown in my application for a patent above referred to, consisting in revolving the I5 knotter in the direction of arrow No. 1 until the portion ofthe cord lying between the knotter and the ordinary cord-holder (not shown) is folded across the portion of cord lying between the hook b and the slot in the plate, and

zo the jaws having been opened during this revolution bythe heel passing behind the carnsurface e', and the revolution still progressing, the cord, which has been folded across lthe band portion, passes between the open jaws,

z 5 when the jaws close and the ends of the cord held in the holder are cut, and the knotter begins its reverse movement, drawing the ends through the loop, and the loop being pushed oft' the knotter by the dog Gr, as in my appli- 3o cation above referred to, the loop being still held by the extreme points of the jaws until the bundle is forced out by the kicker-arms of the hinder, when the loop will be pulled from between the jaws, the spring F being strong enough to hold the cord from slight strains, but giving7 suiciently to allow the loop to be removed when the whole weight of the bundle comes upon it.

The spring Falso adapts the knotter to large 'or small cords, as it will give sufficiently to permit large cords to enter and press close enough to hold small cords.

What I claim as new is- 1. The knotter consisting of the head E, having the fixed barbed jaw b and the pivoted jaw c, in combination with the spring F, having the cam-surface t' and a flat portion, h, adapted to act upon the jaw c to open it when the knotter is revolved in one direction and toclose it when the knotter is reversed, substantially as set forth.

2. The knotter consisting of the head E, having the ixed barbedjaw b and the pivoted jaw c, iu combination with the spring F, having the cam-surface t' and a dat portion, h, adapted to act upon the jaw c to open it when the knetter is revolved in one direction and to close it when the knotter is reversed, and a spring-dog, G, for casting oft the loop from the hooks, substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of subscribing witnesses.

PAUL HANSON.

Witnesses:

O. X. WASHBURN, J. LIND. 

